Q30 of 160 Page 144

In a parallelogram PQRS, if ∠p= 60°, then other three angles are

Opposite angles are equal and adjacent angles are supplementary in a parallelogram.

P = 60°


⇒ R = 60°


Q = ∠S = 1800- 60°


Q = ∠S = 1200


The three angles are 60°, 120°, 120°

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